Package org.exolab.castor.xml.util.resolvers

Class ResolveHelpers

  • public final class ResolveHelpers
extends java.lang.Object
    Some helpers used by the resolver commands. This is a utility class which is NOT meant to be instantiated.
    Since:
    1.2
    Version:
    $Revision$ $Date$
    Author:
    Joachim Grueneis

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.ClassLoader getClassLoader​(java.lang.ClassLoader loader)
      Gets the ClassLoader that's actually to be used (e.g.
      static java.lang.String getPackageName​(java.lang.String className)
      Gets the package name of the given class name.
      static java.lang.String getQualifiedFileName​(java.lang.String fileName, java.lang.String packageName)
      Qualifies the given fileName with the given packageName and returns the resulting file path.
      If packageName is null or a zero-length String, this method will return fileName.
      static java.lang.Class loadClass​(java.lang.ClassLoader classLoader, java.lang.String className)
      Capsulates the ClassLoader.loadClass method to throw no exceptions but return null instead.
      static boolean namespaceEquals​(java.lang.String ns1, java.lang.String ns2)
      Compares the two strings for equality.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • getQualifiedFileName

        public static java.lang.String getQualifiedFileName​(java.lang.String fileName,
                                                    java.lang.String packageName)
        Qualifies the given fileName with the given packageName and returns the resulting file path.
        If packageName is null or a zero-length String, this method will return fileName.
        Parameters:
        fileName - The file name to be qualified.
        packageName - The package name to be used for qualifying.
        Returns:
        The qualified file path.

      • getPackageName

        public static java.lang.String getPackageName​(java.lang.String className)
        Gets the package name of the given class name.
        Parameters:
        className - The class name to retrieve the package name from.
        Returns:
        The package name or the empty String if className is null or does not contain a package.

      • namespaceEquals

        public static boolean namespaceEquals​(java.lang.String ns1,
                                      java.lang.String ns2)
        Compares the two strings for equality. A Null and empty strings are considered equal.
        Returns:
        true if the two strings are considered equal.

      • getClassLoader

        public static java.lang.ClassLoader getClassLoader​(java.lang.ClassLoader loader)
        Gets the ClassLoader that's actually to be used (e.g. for loading resources).
        The actual ClassLoader is determined in the following way:
      • If the passed in "preferred" loader is not null, it is used.
      • If the loader of this XMLClassDescriptor is not null, it is used.
      • The context class loader of the current thread is used.
Parameters:
loader - The "preferred" ClassLoader.
Returns:
The loader to be used.